US Bridges

Mo 11 S over Mussel Fk Drain Dt

Good

Adair County, Missouri · S 31 T 61 N R 17 W · Structure no. 35176

Built
2016
9 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
250 ft
3 main spans
Daily traffic
323
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 11 S over Mussel Fk Drain Dt is a prestressed concrete continuous tee beam carrying Mo 11 S over Mussel Fk Drain Dt in Adair County, Missouri. It was built in 2016, so it is 9 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 323 vehicles a day, roughly 11% of them trucks, projected to reach 404 by 2044. The structure is 250 ft (76.2 m) long and 30 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesMo 11 S
CrossesMussel Fk Drain Dt
LocationS 31 T 61 N R 17 W
RouteState Highway 11
Coordinates40.0464, -92.84758
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating45.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length250 ft (76.2 m)
Longest span90 ft (27.4 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic323 (2024)
Projected traffic404 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 11 S over Mussel Fk Drain Dt built?

It was built in 2016, making it 9 years old in 2025.

What condition is Mo 11 S over Mussel Fk Drain Dt in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Mo 11 S over Mussel Fk Drain Dt carry?

About 323 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Mo 11 S over Mussel Fk Drain Dt?

The structure is 250 ft (76.2 m) long with a longest span of 90 ft (27.4 m) and a deck 30 ft wide.

Who owns Mo 11 S over Mussel Fk Drain Dt?

It is owned by the State Highway Agency.